TY  - BOOK
AU  - Block,J.Richard
TI  - Seeing double: over 200 mind-bending illusions 
SN  - 0415934826
AV  - QP495 B562S
PY  - 2002///
CY  - New York, N.Y.
PB  - Routledge
KW  - OPTICAL ILLUSIONS
KW  - PICTORIAL WORKS
N1  - Includes bibliographical references and indexes
ER  -